CVE-2026-20507 - Vulnerability Details - OpenCVE

In Audio HAL, there is a possible escalation of privilege due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11191981; Issue ID: MSV-9125.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Vendors	Products
Mediatek Subscribe	Mediatek Chipset Subscribe

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products
Mediatek Subscribe	Mediatek Chipset Subscribe

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.mediatek.com/product-security-bulletin/September-2026

History

Mon, 07 Sep 2026 04:15:00 +0000

Type	Values Removed	Values Added
Title		Use‑After‑Free in MediaTek Audio HAL Allows Local Privilege Escalation

Mon, 07 Sep 2026 04:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Mediatek Mediatek mediatek Chipset
Vendors & Products		Mediatek Mediatek mediatek Chipset

Mon, 07 Sep 2026 02:00:00 +0000

Type	Values Removed	Values Added
Description		In Audio HAL, there is a possible escalation of privilege due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11191981; Issue ID: MSV-9125.
Weaknesses		CWE-416
References		https://www.mediatek.com/product-security-bulletin/September-2026

Projects

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MITRE

Status: PUBLISHED

Assigner: MediaTek

Published: 2026-09-07T01:57:22.911Z

Updated: 2026-09-07T01:57:22.911Z

Reserved: 2025-11-03T01:30:59.029Z

Link: CVE-2026-20507

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-09-07T02:17:19.360

Modified: 2026-09-07T02:17:19.360

Link: CVE-2026-20507

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-09-07T04:00:15Z

Weaknesses

CWE-416

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"MT8799"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8873"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8883"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8893"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "MT8910"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MediaTek chipset", "source": "cna", "vendor": "MediaTek, Inc."}, "product": "mediatek_chipset", "vendor": "mediatek"}], "created": "2026-09-07T03:45:07.647210+00:00", "title": "Use\u2011After\u2011Free in MediaTek Audio HAL Allows Local Privilege Escalation", "updated": "2026-09-07T04:00:15.969692+00:00", "vendors": ["mediatek", "mediatek$PRODUCT$mediatek_chipset"]}